ipython/ipython — pull request #930 by minrk (2011-10-26 05:19:40+00:00)
Title: read-only notebook mode

As requested by @fperez

When using a password, read-only mode allows unauthenticated users
read-only access to notebooks. Editing, execution, etc. are not
allowed in read-only mode (the buttons, shortcuts, etc. are removed, but the requests will raise authentication errors if they manage to send the events anyway), but save/print functions are available.

No kernels are started until an authenticated user opens a notebook.